Information About Alopecia Areata

If you have been diagnosed with alopecia areata, you will likely want information to help you get a better understanding of this disease.

It's a good idea to start with the basics, such as "What is alopecia?" Alopecia areata is a form of autoimmune disease, in which the body's immune system attacks the hair follicles. This ultimately leads to hair loss. In many cases, it begins in childhood, and it tends to run in families.

Alopecia areata typically causes hair to fall out in small, round patches about the size of a quarter. In rare situations, it can cause complete loss of hair on the head or complete loss of hair on the head, face, and body.

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